Climate averages 1991–2020
Busan weather
in August.
A warm, very wet month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Busan: daytime highs average 27.5°C and nights cool to about 23.8°C. By daytime temperature it is the warmest month of the year.
Expect about 181 mm of rain on roughly 11 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 29 min on an average August day.
The nearest other city in this atlas is Kimhae (20 km away). In August its highs average 28.4°C, 0.9°C warmer than Busan, with 211 mm of rain.
Among the 79 cities listed in South Korea, Busan ranks joint 71st of 79 for the warmest August highs and 2nd of 79 for the driest August (rainfall, lowest first). The mean August high of those 79 cities is 28.6°C; Busan is 1.1°C cooler than that mean.
From August to September, average highs fall by 3.1°C to 24.4°C, and monthly rainfall falls from 181 mm to 159 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Busan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.5°C0.5°C | 0.5°C | 37 | 4.6 | 10.110 h |
| February | 8.3°C1.6°C | 1.6°C | 47 | 5.2 | 10.911 h |
| March | 11.8°C5.1°C | 5.1°C | 89 | 7.9 | 11.912 h |
| April | 16.0°C9.4°C | 9.4°C | 121 | 8.1 | 13.013 h |
| May | 19.8°C13.8°C | 13.8°C | 130 | 7.6 | 14.014 h |
| June | 22.8°C17.9°C | 17.9°C | 167 | 9.2 | 14.514 h |
| July | 25.9°C22.3°C | 22.3°C | 228 | 11.8 | 14.314 h |
| August, selected | 27.5°C23.8°C | 23.8°C | 181 | 11.0 | 13.513 h |
| September | 24.4°C20.1°C | 20.1°C | 159 | 8.8 | 12.412 h |
| October | 20.1°C14.6°C | 14.6°C | 72 | 4.5 | 11.311 h |
| November | 14.4°C8.3°C | 8.3°C | 52 | 5.4 | 10.410 h |
| December | 8.6°C2.4°C | 2.4°C | 33 | 4.1 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Kimhae in AugustSouth Korea · 20 kmHigh 28.4°C · Low 23.5°C · 211 mm rain
- Gijang in AugustSouth Korea · 23 kmHigh 27.5°C · Low 23.9°C · 198 mm rain
- Yangsan in AugustSouth Korea · 27 kmHigh 28.9°C · Low 23.5°C · 211 mm rain
- Changwon in AugustSouth Korea · 35 kmHigh 28.8°C · Low 23.4°C · 220 mm rain
- Ungsang in AugustSouth Korea · 36 kmHigh 27.9°C · Low 23.3°C · 213 mm rain
- Geoje in AugustSouth Korea · 44 kmHigh 26.8°C · Low 24.6°C · 187 mm rain
- Sinhyeon in AugustSouth Korea · 44 kmHigh 27.3°C · Low 24.5°C · 204 mm rain
- Naesŏ in AugustSouth Korea · 49 kmHigh 29.1°C · Low 23.1°C · 202 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Busan) is explained once on the Busan year overview and on the Sources, method and limits page.